Electrothermal braking system

Abstract

The utility model relates to an electric heating type brake system in the technical field of automobiles. The electric heating type brake system comprises a liquid storage tank, a runner pipe, a control valve, a connecting pipe, calipers, a piston cavity, a piston, an electric heating device, a calipers mounting bracket, an inner brake block, an outer brake block, a guide device and a spring, the calipers are arranged on the calipers mounting bracket, the connecting pipe and the piston cavity are both arranged in the calipers main body, one port of the connecting pipe is communicated with the other port of the circulating pipe, and the other port of the connecting pipe is communicated with the piston cavity; one end of the piston is arranged in the piston cavity, and the other end of the piston is in contact with the inner brake block; the electric heating device is arranged in the piston cavity; the outer brake blocks are arranged on the inner sides of the caliper claws, and the arrangement positions and structures of the outer brake blocks and the inner brake blocks are matched. And the guide device is used for guiding the movement starting of the inner brake block. According to the utility model, the number of matched materials is small, the safety coefficient is high, the unsprung mass is light, and meanwhile, the requirement on actuating time in service braking is met.

Description

Technical Field

[0001] The utility model relates to a brake system in the technical field of automobiles, in particular to an electrothermal brake system with an electric heating device and a guide device. Background Art

[0002] A vehicle's braking system refers to a series of specialized devices that apply a certain amount of force to certain parts of a vehicle (primarily the wheels), thereby forcing a certain degree of braking. The braking system's functions include: slowing down or even stopping a moving vehicle at the driver's request; keeping a stopped vehicle parked stably under various road conditions (including on slopes); and maintaining a steady speed when traveling downhill. A vehicle's braking system refers to the specialized braking mechanism installed on a vehicle to ensure safe driving and increase its average speed. Generally speaking, a vehicle's braking system consists of two independent devices: the service brake and the parking brake. The service brake is operated by the driver's foot, hence the name foot brake. The parking brake is operated by the driver's hand, hence the name hand brake. The service brake is used to slow a moving vehicle or stop it in the shortest possible distance. The parking brake, on the other hand, is used to hold a stopped vehicle in place on various road surfaces. However, in emergencies, both brakes can be used simultaneously to increase braking effectiveness. For some special-purpose vehicles and vehicles that often travel in mountainous areas, long-term and frequent braking will cause the service brakes to overheat. Therefore, various types of auxiliary brake devices are often added to these vehicles to stabilize the vehicle speed when going downhill.

[0003] The braking system primarily consists of an energy supply, a control unit, a transmission, and a brake. Currently, the main energy supply options are air-assisted, hydraulic-assisted, and air-hydraulic. Regardless of the chosen energy supply, a complex set of supporting materials is required. Whether it's compatibility issues or failure of a particular material over time, this undoubtedly increases the safety risks of the braking system. It also increases the vehicle's unsprung mass, adversely impacting acceleration, handling, and ride comfort. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the utility model proposes an electric heating brake system which not only requires less matching materials but also has a high safety factor.

[0005] The utility model is realized through the following technical solutions, the utility model includes a liquid storage tank, a circulation pipe, a control valve, a connecting pipe, a caliper, a piston chamber, a piston, an electric heating device, a caliper mounting bracket, an inner brake block, an outer brake block, a guide device, and a spring; the liquid storage tank is filled with brake fluid, one port of the circulation pipe is connected to the liquid storage tank, and the control valve is connected in series to the circulation pipe; the caliper is arranged on the caliper mounting bracket, the caliper includes a caliper body and a caliper grip, the caliper body and the caliper grip are solidified together, and the overall structure of the caliper grip is L-shaped, the connecting pipe and the piston chamber are arranged in the caliper body, one port of the connecting pipe is connected to the flow pipe The other end of the through pipe is connected, and the other end of the connecting pipe is connected to the piston chamber; one end of the piston is arranged in the piston chamber, and the other end of the piston is in contact with the inner brake pad, and the piston can push the inner brake pad to move; the electric heating device is arranged in the piston chamber to heat the brake fluid; the outer brake pad is arranged on the inner side of the caliper, and the layout positions and structures of the outer brake pad and the inner brake pad are matched; the guide device is connected to the caliper, the caliper mounting bracket, the inner brake pad, and the outer brake pad, and is used to guide the movement start of the inner brake pad; the spring is arranged between the inner brake pad and the outer brake pad.

[0006] Furthermore, in the present utility model, the guide device includes a first guide column, a second guide column, a first guide column shock-absorbing pad, a second guide column shock-absorbing pad, a first guide column mounting hole, and a second guide column mounting hole. The caliper mounting bracket is a U-shaped structure. The middle parts of the first guide column and the second guide column are respectively fixed to the two side parts of the caliper mounting bracket. The first guide column mounting hole and the second guide column mounting hole are respectively arranged on both sides of the caliper body. One end of the first guide column passes through the first guide column shock-absorbing pad and is arranged in the first guide column mounting hole. One end of the second guide column passes through the second guide column shock-absorbing pad and is arranged in the second guide column mounting hole; the other end of the first guide column passes through the same side position of the inner brake block and the outer brake block in sequence, and the other end of the second guide column passes through the other side position of the inner brake block and the outer brake block in sequence.

[0007] Furthermore, in the present invention, the cross sections of the piston cavity and the piston are both circular, and the piston is provided with a sealing device.

[0008] Furthermore, in the present invention, a lead wire sealed terminal is arranged on the electric heating device, and a sealed terminal interface is arranged on the caliper body.

[0009] In this utility model, an electric heater is installed in the inner cavity formed by the brake caliper body and piston. Its outlet wires are led out of the caliper body and must be reliably sealed to the caliper. The fluid reservoir is mounted on the vehicle frame, maintaining a certain height difference from the caliper body. The reservoir functions to store and seal the brake fluid. It also facilitates monitoring of the brake fluid quantity and quality. A solenoid valve is located between the reservoir and the inner cavity of the piston to control the flow of the brake fluid. The brake caliper is fixed relative to the brake caliper mounting bracket by a guide mechanism, with a certain degree of floating relative to the mounting bracket.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention has reasonable design, simple structure, less matching materials, high safety factor, light unsprung mass, and at the same time meets the actuation time requirements in service braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a simplified diagram of the structure of the utility model;

[0012] Figure 2 This is an exploded view of parts of an embodiment of the utility model;

[0013] Figure 3 for Figure 2 A partial enlarged view of the left part;

[0014] Figure 4 for Figure 3 A partial enlarged view of the middle part

[0015] Figure 5 for Figure 3 A partial enlarged view of the right part;

[0016] Among them, 1. fluid storage tank, 2. circulation pipe, 3. control valve, 4. connecting pipe, 5. caliper, 6. piston chamber, 7. piston, 8. electric heating device, 9. inner brake pad, 10. outer brake pad, 11. caliper mounting bracket, 12. guide device, 13. spring, 14. brake disc, 501. caliper body, 502. caliper grip, 1201. first guide column, 1202. second guide column, 1203. first guide column shock absorber pad, 1204. second guide column shock absorber pad, 1205. first guide column mounting hole, 1206. second guide column mounting hole. DETAILED DESCRIPTION

[0017] To make the contents of this utility model easier to understand, the technical solutions of this utility model are further explained below in conjunction with specific embodiments. The examples are only used to illustrate this utility model, but this utility model is not limited to these contents. The operating methods in the following examples without specific conditions are generally carried out under conventional conditions or in accordance with the product instructions. Example

[0018] like Figures 1 to 5 As shown, the utility model includes a fluid reservoir 1, a circulation pipe 2, a control valve 3, a connecting pipe 4, a caliper 5, a piston chamber 6, a piston 7, an electric heating device 8, an inner brake pad 9, an outer brake pad 10, a caliper mounting bracket 11, a guide device 12, a spring 13, and a brake disc 14. The fluid reservoir 1 is filled with brake fluid, one port of the circulation pipe 2 is connected to the fluid reservoir 1, and the control valve 3 is connected in series to the circulation pipe 2; the caliper 5 is arranged on the caliper mounting bracket 11, and the caliper 5 includes a caliper body 501 and a caliper grip 502. The caliper body 501 and the caliper grip 502 are solidified together, and the overall structure of the caliper grip 502 is L-shaped. 4. The piston chamber 6 is arranged in the caliper body 501, one end of the connecting pipe 4 is connected to the other end of the circulation pipe 2, and the other end of the connecting pipe 4 is connected to the piston chamber 6; one end of the piston 7 is arranged in the piston chamber 6, and the other end of the piston 7 is in contact with the inner brake pad 9, and the piston 7 can push the inner brake pad 9 to move; the electric heating device 8 is arranged in the piston chamber 6, which is used to heat the brake fluid; the outer brake pad 10 is arranged on the inner side of the caliper grip 502, and the layout positions and structures of the outer brake pad 10 and the inner brake pad 9 are matched; the spring 13 is arranged between the inner brake pad 9 and the outer brake pad 10. The guide device 12 includes a first guide column 1201, a second guide column 1202, a first guide column shock-absorbing pad 1203, a second guide column shock-absorbing pad 1204, a first guide column mounting hole 1205, and a second guide column mounting hole 1206. The caliper mounting bracket 11 is a U-shaped structure. The middle parts of the first guide column 1201 and the second guide column 1202 are respectively fixed to the two side parts of the caliper mounting bracket 11. The first guide column mounting hole 1205 and the second guide column mounting hole 1206 are respectively arranged On both sides of the caliper body 501, one end of a first guide post 1201 passes through a first guide post shock-absorbing pad 1203 and is positioned within a first guide post mounting hole 1205. One end of a second guide post 1202 passes through a second guide post shock-absorbing pad 1204 and is positioned within a second guide post mounting hole 1206. The other end of the first guide post 1201 passes through the inner brake pad 9 and outer brake pad 10 on the same side, while the other end of the second guide post 1202 passes through the inner brake pad 9 and outer brake pad 10 on the other side. The brake disc 14 is positioned between the inner and outer brake pads 9, 10.

[0019] In the implementation of the present invention, the cross-sections of the fire plug chamber 6 and the piston 7 are both circular, and the piston 6 is provided with a sealing device, thereby making the fire plug chamber 6 and the piston 7 in sealed contact. The spring 13 can play a buffering role for the inner brake block 9 and also play a reset support role.

[0020] When the vehicle needs to brake or decelerate, solenoid valve 3 closes, and electric heater 8 activates. The brake fluid expands due to heat within milliseconds, causing the hydraulic pressure to increase suddenly. This pushes piston 7, forcing inner and outer brake pads 9 and 10 to clamp onto brake disc 14, generating friction that slows the wheel or actually brakes the vehicle. When the brake release command is received, solenoid valve 3 opens, and the brake fluid flows from the high-pressure area to the low-pressure area. That is, the brake fluid flows from piston chamber 6 into reservoir 1, releasing pressure and relaxing the brake pads.

[0021] The above embodiments are merely illustrative of the design principles and uses of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. An electrothermal brake system comprising a fluid reservoir, a flow pipe, and a control valve, wherein the fluid reservoir is filled with brake fluid, one end of the flow pipe is connected to the fluid reservoir, and the control valve is serially connected to the flow pipe, characterized in that: It also includes a connecting pipe, a caliper, a piston chamber, a piston, an electric heating device, a caliper mounting bracket, an inner brake pad, an outer brake pad, a guide device, and a spring; The caliper is arranged on a caliper mounting bracket, and includes a caliper body and a caliper grip. The caliper body and the caliper grip are fixed together, and the overall structure of the caliper grip is L-shaped. The connecting pipe and the piston chamber are both arranged in the caliper body, one end of the connecting pipe is connected to the other end of the flow pipe, and the other end of the connecting pipe is connected to the piston chamber; One end of the piston is arranged in the piston cavity, and the other end of the piston is in contact with the inner brake block, so that the piston can push the inner brake block to move; The electric heating device is arranged in the piston cavity and is used to heat the brake fluid; The outer brake pad is arranged on the inner side of the caliper, and the arrangement positions and structures of the outer brake pad and the inner brake pad are matched; The guide device is connected to the caliper, the caliper mounting bracket, the inner brake pad, and the outer brake pad, and is used to guide the movement of the inner brake pad. The spring is arranged between the inner brake shoe and the outer brake shoe.

2. The electrothermal brake system according to claim 1, characterized in that The guide device includes a first guide column, a second guide column, a first guide column shock-absorbing pad, a second guide column shock-absorbing pad, a first guide column mounting hole, and a second guide column mounting hole. The caliper mounting bracket is a U-shaped structure. The middle parts of the first guide column and the second guide column are respectively fixed to the two side parts of the caliper mounting bracket. The first guide column mounting hole and the second guide column mounting hole are respectively arranged on both sides of the caliper body. One end of the first guide column passes through the first guide column shock-absorbing pad and is arranged in the first guide column mounting hole. One end of the second guide column passes through the second guide column shock-absorbing pad and is arranged in the second guide column mounting hole; the other end of the first guide column passes through the same side of the inner brake block and the outer brake block in sequence, and the other end of the second guide column passes through the other side of the inner brake block and the outer brake block in sequence.

3. The electrothermal brake system according to claim 2, characterized in that The cross sections of the piston cavity and the piston are both circular, and the piston is provided with a sealing device.

4. The electrothermal brake system according to claim 3, characterized in that A lead wire sealing terminal is arranged on the electric heating device, and a sealing terminal interface is arranged on the caliper body.

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